/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: Lenovo
 * Date: 2025-03-30
 * Time: 18:24
 */
// Money类：包含一个公有字段的简单数据类
class Money {
    // 公有字段，存储金额数值
    public double m = 88.8; // 初始值为99.99
}